VAN ZYL, A G P; ALLWOOD, B W; KOEGELENBERG, C F N; LALLA, U; RETIEF, F. The effect of inhaled nitric oxide on shunt fraction in mechanically ventilated patients with COVID‑19 pneumonia. African Journal of Thoracic and Critical Care Medicine, [S. l.], v. 29, n. 2, p. 64–66, 2023. DOI: 10.7196/AJTCCM.2023.v29i2.279. Disponível em: https://samajournals.co.za/index.php/ajtccm/article/view/1351. Acesso em: 19 jan. 2025.